LDP type electric single girder crane is a super low clearance light crane, electric hoist on one side of the main beam, increasing hook service space, can reduce the factory height and cost. The product with large trolley track distance, smooth operation, compact structure, good rigidity, sensitive operation, low noise, tsafe, reliable, beautiful shape, widely used in the working environment temperature－20℃～+40℃, and the workshop's headroom is low and other places. Its rated load is 3T~10T span is 7.5M~22.5M, working grade is A3, A4 .